Hi Wesley,
A good source of information in regard of projections is the proj4
mailing list:
http://lists.maptools.org/mailman/listinfo/proj
cheers,
Paul
Wesley Roberts wrote:
Dear Colleagues,
I have a data set which is projected using the following projection,
Hartebeeshoek94 Projection Gauss Conform LO31. This is a local projection used
in South Africa. So far, I have only been able to find the EPSG code for the
projection from http://spatialreference.org/ref/epsg/2054/ . I am actually
looking for the Proj4 definition as the library in rgdal does not contain any
information regarding the projection. Using the following command I found no
information for the specified code
poly <- readShapePoly("PCA_AreaOne_2_water_EPSG.shp", IDvar="cat",
proj4string=CRS("+init=epsg:2054"))
Error in CRS("+init=epsg:2054") : no options found in 'init' file
Could someone please provide me with the full proj4 definition as the spatial
reference site does not seem to have it.
Many thanks and kind regards,
Wesley
Wesley Roberts MSc.
Researcher: Earth Observation (Ecosystems)
Natural Resources and the Environment
CSIR
Tel: +27 (21) 888-2490
Fax: +27 (21) 888-2693
"To know the road ahead, ask those coming back."
- Chinese proverb
--
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone: +3130 274 3113 Mon-Tue
Phone: +3130 253 5773 Wed-Fri
http://intamap.geo.uu.nl/~paul
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